An Improvement on the Negative Sign Problem in Numerical Calculations of a Quantum Spin System
Condensed Matter
2009-10-22 v1
Abstract
We propose new approach to numerical study of quantum spin systems. Our method is based on a fact that one can use any set of states for the path integral as long as it is complete. We apply our method to one-dimensional quantum spin system with next-to-nearest neighbor interactions. We found remarkable improvement in negative sign problem.
Keywords
Cite
@article{arxiv.cond-mat/9306049,
title = {An Improvement on the Negative Sign Problem in Numerical Calculations of a Quantum Spin System},
author = {Tomo Munehisa and Yasuko Munehisa},
journal= {arXiv preprint arXiv:cond-mat/9306049},
year = {2009}
}
Comments
11 pages, LaTeX, figures on request, YAMANASHI-93-01